Spindle for spinning-machines and support therefor



(No Model.)

W. T. CARROLL.

SPINDLE POR SPINNING MACHINES AND SUPPORT THERBPOR. No. 256,792'. Patented Apr.18,1882.

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' UNITED STATES PATENT OEEICE.

WILLIAM T. CARROLL, OF WORCESTER, ASSIGNOR 'IO VGEORGE DRAPER 8v' SONS, OF HOPEDALE, MASSACHUSETTS.

SPINDLE FOR SPINNING-MACHINES AND SUPPORT THEREFOR.

SPECIFICATION forming part of Letters-Patent No. 256,792, dated April 18, 1882.

Application tiled March 31, 1881. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM T. CARROLL, of Worcester, county of Worcester, State of Massachusetts, have invented an Improvement in Spindles for Spinning-Machines and Supports therefor, ot' which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to spindles having ro sleeve-whirls, and more especially designed to be used in ring-spinning machines.

My invention consists essentially in abolster-rail, a spindle-bolster extended below it having its interior portion supported therein i5 to rock with the spindle, and the step having a horizontal or plane surface over which the lower end ofthe spindle may travel fr eel y, combi'ned with the spindle and the whirl connected therewith, the spindle with its load being supzo ported and steadied, as herein described, in order that the lower end of the spindle may move freely in a lateral direction to'tind its true center of rotation.

Figure 1 represents in vertical section a sut'- 25 licient portion ofariug-spinning frame to illustrate my invention, and Fig. 2 a section ot' a moditied form of bolster.

This invention is intended to be an improvement in that class of spindle represented in 3o United States Patent No. 227,129, to which reference may be had, wherein the spindle is so supported and driven as to enable it, with its load, should it be more or less unbalanced, to readily nd its-true center ot' rotation.

In this my invention the sleeve-whirl is shown connected with the spindle very close to the lower end ot' the latter, whereby the. weight of the spindle and its attached revolving parts is brought down as closely as possi- 40 ble to the step or support on which the spindle rests and rotates, thereby enabling the spindle to be run more steadily.

The spindle-rail a, the step-rail I), and the bobbin c'are all of usual construction. The

.spindle d, which carries and drives the bobbin as `usual, has its lower end rounded, as at d2, to rest upon a steel, glass, or other hard horizontal or level surface, e, ot' the spindle-step e2, the end d2 of the said spindle being free to move 5o or wander horizontally over lthat part or surface of the step on which it rests and rotates as the lower end of the spindle seeks its true center of rotation, so as to run evenly and steadily, notwithstanding the load carried by the spindle is or may be more or less unbalanced. -The top ofthe step e2 will have a wall or guard about it to form a chamber very considerably larger in diameter than the diameter ot the lower end ot' the spindle, as shown in the drawings. The spindle-bolster is a compound one, composed ot' an outer shell, f, and an inner or bearing portion, g, placed therein, the said inner portion being of such diameter and shape eX- ternally as to touch the interior of the shellf at but one place-viz., substantially inline with the center ot' the groove of the whirlsuch construction (the interior of the inner portion g fitting the spindle closely) enabling the Y said inner portion to move within the shellf 7o under the action of the spindle and in unison with it as the spindle changes its position in finding its true center of rotation, with its load i more or less unbalanced. In Fig. 1 this inner portion, g, has a-ball-like projection, g2, which touches or tits the interior of the shell; but above and below this projection g2 the interior diameter of the shell is in excess of the external diameter ot the portion g, which enables the portion g to rock or move universally. In Fig. 2 I have shown a moditication in which the interior ofthe shellfis bored on ataper from each end toward its center, growing smaller toward the center, where I have placed a stud, h, which supports the inner portion, g, ofthe bolster and permits it to rock, as described, freely, as the spindle is moved to tind its true center of rotation.

The sleeve-whirl l is substantially such a whirl as that shown in the patent referred to, and it will be driven by a band in the usual manner; but, instead of connecting it with the spindle above the bolster-rail to surround the upwardly extended bolster tube connected with the foot-step rail, I have attached the said sleeve-whirl to the spindle very near its lower end, so that the upper end of the sleeve-whirl is made to surround the lower end of the bolster, extended downward below thebolster-rail, as shown in the drawings, the connection of loo the said sleeve-whirl with the spindle being between the lower end of the bolster and the Iti step-rail, the weight of the sleeve and whirl being all below the lower end of the bolster.

I do not broadly claim a bolster-bearing so constructed as to rock within its shell, as that, I am aware, is not new.

In the patent referred to an elastic packing is described as being interposed between the portion of the bolster-bearing which runs in contact with the spindle and the rigidly-held shell or tube outside of it; but in the construction herein described the said elastic medium is not needed. The nearer to its point of support that the weight of the rotating spindle can be brought the more easily it can be balanced and made to run truly and steadily; and to secure the most favorable results in spinning I have connected the whirl with the spindle below the bolster-bearing, and very near the. lower end ot' the spindle and the step on which it rests. To do this and have the band pull at the proper point I inverted the sleeved whirl, so as to receive within it and the whirl the lower end of the bolster.

It' the spindle had a conical point such as commonly found on spinning-spindlesfand such point were iittedninto a like shaped or conical recess ot' a little larger diameter in the step, it is obvious that the principle ot' operation of such a spindle would be very different from that herein described, even were the spin dle-bolster supported in its outer shell or snpporting-tube, as shown in the drawings, for the lower conical end of a spindle fitted into a conical socket cannot move laterally to find the true center of rotation for the spindle and its load, because any attempted lateral motion of the foot of the spindle would be niet by the inclined side of the step-socket. In that case 'the inner portion of the bolster of the kind,

herein shown would move only to avoid cramping or bendingthe spindle between the said bolster and the step-socket. Y

The portion g of the bolster-bearin g may be grooved in any usual manner to enable the bolster to be oiled.

I claim- 1. The bolster-rail and spindle-bolster eX- tended below it, the said bolster having its interior portion supported therein to roel; with the spindle, and the step having a horizontal or plane surface over which the lower end of the spindle may travel freely, combined with the spindle and the whirl connected therewith, the spindle with its load being supported and steadied as described in order that the lower end of the spindle may move freely in a lateral direction to tind its true center of rotation without cramping the spindle in its bearings, substantially as described.

2. The bolster-rail and spindle-bolster extended below it, the said bolster having its interior portion supported therein to rock with the spindle, and the step having a horizontal or plane surface over which the lower end oi' the spindle may travel freely, combined with the spindle and the sleeve-whirl connected therewith between the said bolster and step, the spindle with its load being supported and steadied as described in order that the lower end of the spindle may move freely' in lateral direction to find its true center of rotation without cramping the spindle in its bearings, substantially as described.

In testimony whereofI have signed my name to this specification in the presenee ot two subscribing witnesses.

WILLIAM T. CARROLL.

Witnesses:

H. W. MASON, WM. F. DRAPER. 

